Internal-combustion engine.



K. STEINBEGKER. INTERNAL COMBUSTION ENGINE.

APPLICATION FILED JULY 2, 1912.

Patented Feb. 10, 1914.

Fig. I,

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"UNITED STATES .PATEN F- KARL STEIN'BECKER, OF CHLARLO'I'TENBURG, GERMANY, ASSIGNOR TO GENERAL ELECTRIC COMPANY, A CORPORATION OF NEW YORK.

INTERNAL-COMBUSTION ENGINE.

Specification of Letters Patent.

Application filed July 2, 1912. Serial No. 707,188.

To all whom it may concern Be it known that I, KARL STEINBEGKER, a subject of the King of Prussia, residing at Charlottenburg, Germany, have invented certain new and useful Improvements in Internal-Combustion Engines, of which the following is a specification.

The present invention relates to internal combustion engines and has for its object to improve their construction and operation, particular reference being made to the arrangement of the engine cylinders, the receiver and scavenging pump and cooperating parts.

The present invention is an improvement over that shown in my applicatlon Serial No. 683,501, filed March 13, 1912, on an internal combustion engine, and for features herein illustrated and not claimed, attention is directed to said application.

In the accompanying drawing, which illustrates one of the embodiments of my.

invention, Figure 1 is a vertical section of an engine; Flg. 2 is also a vertical section of the engine taken at right angles to that of Fig. 1; and Fig. 3 is a horizontal section taken on line 33 of Fig. l. v

1 indicates the base of the engine and mounted thereon are bearings 2 for the main crank shaft 3. Mounted on the base are vertical columns 4 which support the receiver 5, said receiver also forming the principal member of the engine frame. Extending through the receiver are as many cylinders 6 as may be desired for the engine; in the present case two are shown. Each of the cylinders is provided with an annular shoulder 7 that rests on the receiver and transfers to it the weight and the strains of said cylinder. As each cylinder is snugly fitted to the top and bottom walls of the receiver the same is rigidly held in position. Each cylinder is also provided with a suitable water jacket 8 formed by-coring out the casting. Located in each cylinder are two oppositely moving pistons 9 and 10. The upper piston controls the exhaust ports 11 that are angularly displaced around the cylinder wall. The lower piston controls the scavenging ports 12 that are similarly arranged and which communicate with the interior of the receiver 5. The upper piston is connected to a cross-head 13' which in turn is connected to cranks on rods 14. These rods pass through hollow members or partitions 15 in the receiver which are properly shaped togive freedom of movement to the rods. These members connect the top and bottom walls of the receiver and in addition to preventing air from escaping around "the rods act as braces for said Walls. This arrangement has the advantage of permitting the use of long rods that can swing on the cross-heads as pivots and obviates the use of packings when the rods pass through the receiver. The lower trunk piston is connected to the inain crank shaftby a connecting rod 16 in the usual manner. The exhaust ports are inclosed in a housing 17 that is closely fitted around the cylinder and communicates with the exhaust conduit 18. l 1

The present engine operates on the two cycle constant pressure plan, air being compressed between the piston heads to a relatively high degree and its temperature at the same timeraised to such a degree that the fuel, suchas oil, when injected into the combustion space 19, will be automatically fired. The

fuel is injected through devices, such as nozzles 20, contained in the casings 21 under the control of valves in any suitable manner. As shown, each cylinder has two of these injecting devices but only one may be employed if desired.

Located within the receiver is the cylinder 22 of a double acting reciprocating air compressor-or pump that supplies airfor scavenging purposes. It is provided with a piston 23 having a rod 24 that is attached to the sliding cross-head 25, the latter being connected by a rod 26 with the main crank. The cylinder is provided with top and bottom heads 27 attached to the receiver, both of which 'have suction valves 28 opening toward the piston,-one set opening when the piston moves in one direction, the other set when it moves in the opposite. The cylinder is also provided with a plurality of discharge ports 29 arranged in sets at opposite ends thereof. Each of these ports is controlled by a small flap valve 30, best shown in Fig. 3, to cover said ports on the suction stroke of the piston. Without these or some scavenging ports 12 of the cylinders is free and unrestricted. This is a very desirable arrangement if the best effects are to be obtained in the way of scavenging or washing the cylinders of exhaust gases. The more freely the air can pass fromthe receiver into the cylinders the better, and by arranging the scavenging. ports 12 around the cylinder air will readily enter from different points and the several streams meeting'in the cylinder will completely wash out the objectionable burned gases.

My improved construction has the advantage that fluid is discharged from the entire periphery of the pump cylinder and is supplied in broad streams to the scavenging ports of the engine cylinders through which the fluid freely enters. By arranging the receiver as shown and utilizing the space between the cylinders it may easily have a capacity that represents a multiple of the total contents of all the working cylinders, so that, in the admission and discharge of fluid, only small variations of pressure occur, and the work performed by the pump and the weight'of the charge of the working cylinders are kept tolerably. uniform. Further, by reason of the large cross-sectional area in the receiver the rate of flow of the fluid therein is low, thereby reducing I the losses due to friction.

From a constructive point of view, it is decidedly advantageous to form the receiver as a casting which can easily be made, and to utilize it as a frame for'the entire structure of the engine, particularly when the cylinders are vertically arranged.

'In accordance with the provisions of the patent statutes, I have described the principle of operation of my invention, together with the apparatus which I now consider to represent the best embodiment thereof; but

I desire to have it understood that the apparatus shown is only illustrative and that the invention can be carried out by other means.

What I claim as new and desire to secure by Letters Patent of the United States, is,-

1. In an internal combustion engine, the combination of a base, a receiver supported by the base, a cylinder for the engine that is mounted on the receiver, a piston for the cylinder, a pump cylinder that is also mounted on the receiver and discharges fluid thereto, a piston therefor, and means for connecting the pistons of the engine and pump.

2. In an internal combustion engine, the combination of a base, a receiver supported by the base and forming a frame, a cylinder for the engine that is supported by the receiver and extends into it, ports in the cylinder that open into the receiver, a pump cylinder mounted in the receiver and supported thereby, ports in the pump cylinder that discharge into the receiver, pistons for the engine and pump, a crank shaft, and connecting rods between the pistons and the shaft.

3. In an engine, the combination of a base, a receiver having cylindrical openings in its top and bottom walls, means for sup porting the receiver that are carried by the base, a vertically disposed working cylinder mounted in one pair ofthe openings and held in position by the top and bottom walls of the receiver, ports in the cylinder, a pump for delivering fluid to the receiver and said ports having its cylinder mounted in other of said openings and, supported by one of said walls of the receiver, pistons for the engine and pump, a crank shaft, and

means for connecting the pistons and the shaft.

4. In an engine, the combination of a base, a receiver, means carried bythe base that support the receiver, a cylinder that is supported by the receiver, tubular members that extend through the receiver, oppositely moving pistons in the cylinder, a cross-head for the upper piston, a crank shaft, rods for transmitting motion between the cross-head and shaft that pass through the members, ports in the cylinder that are controlled by the pistons, and means connecting the lower piston and the shaft.

5. In an engine, the combination of a' base, a receiver, means carried by the base that support the receiver, a vertically disposed open-ended cylinder that extends through the top and bottom walls of the receiver and is held in position thereby, a shoulder on the cylinder that engages one of the walls of the receiver to support the weight thereof, exhaust and scavenging ports for the cylinder, the latter ports opening into the receiver, an air pump having a cylinder mounted in the receiver and supported thereby, ports for the pump that discharge intothe receiver, oppositely disposed pistons in the cylinder that control the ports thereof, a crank shaft, and means connecting the'pistons with the shaft.

6. In. an engine, the combination of a base, a receiver, means carried by the base that support the receiver, an open-ended cylinder that iswholly supported by the receiver, hollow members that extend through the receiver, oppositely moving pistons in the-cylinder, a main shaft, a connecting rod that unites the lower piston and the shaft, a cross-head for the upper piston, and side connecting rods that are pivotally attached to the cross-head and the crank-shaft and extend freely through the hollow members.

7. In an engine, the combination of a base, a receiver, means carried by the base for supporting the receiver, a cylinder for the engine that is supported wholly by the receiver, an air pump having a cylinder that is also wholly supported by the receiver,

ports in the latter cylinder that discharge into the receiver, valves therefor, heads for said cylinder that are secured to the top and bottom walls of the receiver, valves in said heads, exhaust and scavenging ports for the engine cylinder, the latter ports opening directly into the receiver, a piston in the cylinder controlling the scavenging ports, fuel admitting means, a crank shaft, and a connection between the engine piston and the shaft.

8-. In an engine, the combination of a base, a receiver having openings in its upper wall, working cylinders that are located in certain of said openings and are wholly supported by the receiver, ports in each cylinder that open into the receiver, and an air pump having its cylinder mounted in other of said openings that discharges scavenging air through ports in the walls directly into the receiver. I v

9. In an engine, the combination of a cylinder comprising inner and outer walls with space forcooling fluid between them, a base, a receiver that is supported by the base and upon which the cylinder is mounted, said receiver being situated between the upper end of the cylinder'and the base and of a width greater than the diameter of the cylinder and both walls of the cylinder extending through the receiver, oppositely moving pistons, a crank shaft, side rods connected to the upper piston that pass through the receiver and are attached to the crank shaft, and a connecting rod between the lower piston and the shaft.

10. In an engine, the combination of a cylinder, a base, a receiver that is supported by the base and upon which the cylinder is mounted, said receiver being situated between the upper end of the cylinder and the base and of a width greater than the diameter of the cylinder, oppositely moving pistons, a crank shaft, side rods connected to the upper piston that pass through the receiver and are attached to the crank shaft, hollow members that connect the top and bottom walls of the receiver forming braces therefor through which the side rods pass without contact, and a rod connecting the lower piston and the shaft.

In witness whereof, I have hereunto set my hand this 13th day of June, 1912.

KARL STEINBECKER.

Witnesses WOLDEMAR HAUPT, HENRY HASPER.

It is hereby certified that in Letters Patent No. 1,086,792 granted February 10,

an improvement in Internal-Combustion Engines, an error appears in the printed specification requiring correction as follows: Page 3, line 20, for the article the read its; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Oflice.

Signed and sealed this 24th day of February, A. D., 1914.

J. T. NEWTON,

' Acting Commissioner pf Patents 1914, upon the application of Karl Steinhecker, of Charlottenburg,Germany, for 

